The catalyst system to produce polymers having a broad molecular weight distribution and how to create the same as those

摘要

Cocatalyst containing non-transition metal cyclopentadienyl unsubstituted or substituted and chromium (Cp) compound is included in the catalyst system during the polymerization of olefins. The catalyst also comprises an inorganic oxide support. Methods of preparing the catalyst comprises contacting the non-transition metal Cp compound and the chromium and support. The support may be contacted with the solution containing the non-transition metal Cp compound prior to entering the reaction zone. Contact with a co-catalyst containing a non-transition metal Cp catalyst and containing chromium and the olefin include a method of polymerizing olefins at least one. The polymerization can be carried out in the presence of hydrogen. The use of the cocatalyst together with the catalyst, to improve some of the properties of such polymers to be produced in this way. Polymer composition such as produced by the method comprising greater than 30 PDI, has the unique characteristic of the various.